When I was in first grade a boy down the street told me that the purpose of testicles was to spin really fast so that our urine would have velocity. This was my going theory for at least a year.
A childhood belief about rude bits

others believed things like this
- My dad told me that kiwi fruits were kiwi birds testicles. They are the right shape and kind of furry— jefnier
- I used to think that if I ate a Wunderbar chocolate bar, I could spin around and become Wonder Woman. — Miss Naive
- I used to believe the tv serie "Doctor Who" was a spin off from James Bond... (until I saw an episode)Anon
- when i was young i thought that a giant made the world slowly spin!— ~kassie~
- When I was 6 I believed that on nice summer days you can see the world spin if you just look hard enough :)Anon
- I used to think pee was in your testicles.— R.G.